Improvement in evaporator and fruit-drier



J. B. SWEETLAND. Evaporator and Fruit-Dryer.

No. 209,146. Patented Oct. 22,1878.

N. PETERS, PMOTO-UTMOGRAFNFR WASHINGTON, D. C,

UNITED STATES PATENT OFFICE.

JEROME B. SWEETLAND, OF PONTIAC, ASSIGNOR OF TWO-THIRDS HIS RIGHT TO H.N. SWEENEY AND A. MOPHERSON, OF DETROIT, MICHIGAN.

IMPROVEMENT IN EVAPORATOR 'AND FRUIT-DRIER.

Specification forming part of Letters Patent No. 209.146, dated October22, 1878 application filed September 12, 1878.

To all whom it may concern:

Be it known that I, JEROME B. SWEETLAND, of Pontiac, in the county ofOakland, and in the State of Michigan, have invented certain new anduseful Improvements in Evaporator and Fruit-Drier; and do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangementof an evaporator and fruit-drier, as will be hereinafter more fully setforth.

In order-to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure 1 is a longitudinal vertical section of my invention, and Fig. 2is a transverse vertical section of the same.

A represents the case or box of my drier,

supported upon legs B B, and provided at the front with a door, O. Underthe drier is the furnace E, the blaze and heat from which strike thebottom of the boiler D. On the top of this boiler or first section isformed a pan, a. Above the boiler or first section, D, are any desirednumber of hollow sections, D, formed with pans a at the top,

The sections D D are placed' alternately front and rear, so as to leavea passage alternately between the back of the drier and one section, andbetween the front of the drier and the next section, and so on. Thesepassages are marked 11. At the top of the door 0 is an opening, 01. e eare pipes running from the upper part of each section through the door,as shown.

In the boiler D there are as many openings as there are sections or pansabove it, and each of these upper sections or pans has a selfpackingopening in the back side, coinciding with suitable openings in the backof the case.

.Each pan D is connected with the boiler D by a separate pipe, F, sothat the steam can be shut off from any one or more of the uppersections or pans, D.

The joint between the pipes F and their respectivesections D may beformed by means of .rubber sleeves f, or in any other suitable orconvenient manner.

The pipes c are for the purpose of giving suitable vent, so that thesteam will circulate.

7 Around the furnace E is a shield, G, forming a chamber for heatingair. Back of the boiler are perforations t in the bottom, so that theheat thrown off from the firebox passes up through said perforations andpast the rear of the boiler, over the bottom pan, a, of fruit,

and up past the front end of the next section,

over the same to the back, and so on, and finally escapes through theopening d at the top of the door, or some other opening made for thatpurpose.

The object of the hot air is twofold: It keeps the trays or pans hot,and it also carries oft thevapor and moisture as they rise from thepans, and assists the drying process. The machine thus is actually acombined steam and hot-air drier. I

Having thus fully described my invention, what I claimas new, and desireto secure by Letters Patent, is-

The combination of the case A, boiler D, fire-box E, with surroundingshield G, the pans D D, and connecting-pipes F F, whereby the hot air iscaused to pass under and over the pans D, and the steam at the same timecaused to circulate through one or more of the pans, substantially asherein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this13th day of August, 187 S.

JEROME B. SWEETLAND. Witnesses:

J UNIUS TEN EYGK, WARREN J. Cook.

